Wray, S. K. (2009). Communities and crisis: Bologna during the Black Death. Brill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWray, Shona Kelly. Communities and Crisis: Bologna During the Black Death. Leiden ; Boston: Brill, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWray, Shona Kelly. Communities and Crisis: Bologna During the Black Death. Brill, 2009.
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